Completed in the mid-1920s, 140 New Montgomery Street is one of the early skyscrapers built in San Francisco. The Art Deco high-rise, originally known as the Pacific Telephone and Telegraph Building, served as the headquarters for the utility...

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This series of articles discusses a number of commonly encountered structural issues on renovation and restoration projects that focus on historic houses of worship, and provides guidance on ways to address them. Parts one, two, and three of this...

This series of articles discusses some of the commonly encountered structural issues with renovation projects focusing on historic buildings of this type, and provides guidance on ways to address them. Part two of this series focuses on wall...

One way historic structures vanish is through the degradation of materials from heat, air and moisture attack. Whether your historic structure is abandoned, currently occupied or in planning stages of adaptive reuse, hygrothermal analysis...

West Hall, one of the many historic campus buildings designed by Albert Kahn (one of the leading American industrial architects of his day), is located on South University Avenue on the University of Michigan’s Central Campus. The building...

Since 1916, the Great Dome has been the symbol of the MIT campus. In 1942, MIT covered the oculus skylight in the Dome, resulting in the Barker Library Reading Room being solely lit by electric lights and an overall dim lighting level. MIT...

A trestle that once carried iron ore through a busy Bethlehem Steel plant in eastern Pennsylvania now serves as a pathway for visitors to the reinvented SteelStacks venue. Founded in 1857 in Bethlehem, Pennsylvania, and shuttered in 2003,...

America’s public buildings at the turn of the last century were awash in daylight – large skylights illuminated assembly spaces, stair cases, conservatories, and libraries. The motivations for this approach were both pragmatic...

Fewer iconic buildings exist than the Great Dome on the campus of Massachusetts Institute of Technology (MIT). In the 1940s, MIT covered the oculus in the dome, dimming the beauty of the original design. More than 60 yrs later, MIT...

This series of articles discusses some of the commonly encountered structural issues during the renovation and restoration of historic buildings of this type, and provides guidance on ways to address them. Parts one and two of this series focused...

The Association for Preservation Technology Northeast Chapter (APTNE) held their 2015 Annual Symposium in New York on 6 February 2015. At this symposium, Nathaniel B. Smith and Milan Vatovec gave a presentation titled, “Wood for...